IDEM INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT 

We Protect Hoosiers and Our Environment. 

Mitchell E. Daniels Jr. 

Governor 

Thomas W. Easterly 

Commissioner 

Ms. Susan Hedman 

Regional Administrator 

U.S. Environmental Protection Agency 

Region 5 

77 West Jackson Boulevard 

Chicago, IL 60604-3950 

Dear Ms. Hedman: 

June 15, 2012 

JUN 1 .J 2012 

-. t ' , 

'• .i\•. V \)l(IH . . J r I 1 / 

1 00 North Senate Avenue 

Indianapolis, Indiana 46204 

(317) 232-8603 

Toll Free (800) 451-6027 

www.idem.IN.gov 

Re: Request to Parallel Process the Draft 

MOBILE6.2 to MOVES MVEB 

Replacement Update to the South BendElkhart Maintenance Area under the 1997 

8-Hour Ozone Standard 

The Indiana Department of Environmental Management (IDEM) submits the 

enclosed MOBILE6.2 to Motor Vehicle Emissions Simulator (MOVES) Motor Vehicle 

Emissions Budget (MVEB) replacement update for the South Bend-Elkhart Maintenance 

Area under the 1997 8-hour ozone standard. The South Bend-Elkhart maintenance area 

includes St. Joseph and Elkhart counties. IDEM requests that the United States 

Environmental Protection Agency (U.S. EPA) parallel process this draft submittal for 

approval into Indiana's State Implementation Plan. 

IDEM is providing an opportunity for a public hearing on the MVEB replacement 

update to the South Bend-Elkhart maintenance area if a public hearing request is 

received by July 11, 2012. A hearing has been scheduled for July 18, 2012. If a request 

for a public hearing is not received by July 11, 2012, the hearing will be cancelled. The 

final submittal of the MVEB update for the South Bend-Elkhart maintenance area will 

document the public review process, including a detailed summary of and response to 

substantive comments. 

This MOBILE6.2 to MOVES MVEB replacement update incorporates onroad 

emission estimates and revised MVEBs using U.S. EPA's recently adopted MOVES 

model. The onroad emission estimates were calculated using the MOVES-based 

emission factors and data extracted from the South Bend-Elkhart area's travel-demand 

model. 

MVEBs are being revised in anticipation of the mandatory use of the MOVES 

model in future transportation conformity determinations. Preliminary use of the new 

model indicates that emission estimates can be considerably different than similar 

Recycled Paper ® An Equal Opportunity Employer Please Recycle O 
Ms. Hedman 

Page 2 

calculations using MOBILE6.2, which was used to create the MVEBs in the original 

ozone maintenance plan. 

On road safety margins, established through the interagency consultation process, 

are included for nitrogen oxides (NOx) and volatile organic compounds (VOCs). These 

onroad safety margins are allocated to on road emission estimates in order to account for 

the wide array of assumptions that are factored into the calculation process. With the 

addition of on road safety margins applied to mobile sources, the South Bend-Elkhart 

maintenance area will continue to remain well below the overall safety margins for all 

sources. MVEBs are also constrained to ensure that total NOx and VOC emissions (i.e., 

all source categories) do not exceed attainment year emissions, to ensure continued 

maintenance of the 1997 8-hour ozone standard. 

This submittal consists of one (1) hard copy of the required documentation. An 

electronic version of the submittal in PDF format that is identical to the hard copy has 

been sent to Pamela Blakley, Chief of U.S. EPA Region 5's Control Strategies Section. 

IDEM respectfully requests that U.S. EPA proceed with preliminary review of the 

MOBILE6.2 to MOVES MVEB replacement update and revised transportation conformity 

budgets and approval into Indiana's State Implementation Plan for the South BendElkhart Maintenance Area under the 1997 8-hour ozone standard. If you have any 

questions or need additional information, please contact Scott Deloney, Chief, Air 

Programs Branch, at (317) 233-5694. 

KB/sad/sms 

Enclosure: 

Sincerely, 

Keith Baugues 

Assistant Commissioner 

Office of Air Quality 

On road Emissions MOBILE6.2 to MOVES Replacement Submittal for the South 

Bend-Elkhart, Indiana Maintenance Area under the 1997 8-Hour Ozone Standard 

Cc: Doug Aburano, U.S. EPA Region 5 (w/ enclosures) 

Ed Doty, U.S. EPA Region 5 (w/ enclosures) 

Pamela Blakley, U.S. EPA Region 5 (w/ enclosures) 

Pat Morris, U.S. EPA Region 5 (w/ enclosures) 

Recycled Paper @ 

Steve Rosenthal, U.S. EPA Region 5 (no enclosures) 

Sandi Seanor, MAGOG (w/ enclosures) 

Scott Deloney, IDEM (no enclosures) 

Christine Pedersen, IDEM (no enclosures) 

Shawn Seals, IDEM (w/ enclosures) 

An Equal Opportunity Employer Please Recycle O 
Onroad Emissions MOBILE6.2 to 

MOVES Replacement Submittal 

For the South Bend-Elkhart, Indiana 

Maintenance Area under the 1997 

8-Hour Ozone Standard 

DRAFT 

June 2012 
This page intentionally left blank 
Introduction 

On May 30,2006, the Indiana Department of Environmental Management (IDEM) submitted a 

Request for Redesignation and Maintenance Plan for Ozone Attainment in the 8-Hour Ozone 

Nonattainment Area, St. Joseph-Elkhart Counties, Indiana. The United States Environmental 

Protection Agency (U.S. EPA) subsequently approved the Indiana redesignation ofthe South BendElkhart Area (including St. Joseph and Elkhart counties) to attainment for ozone on April18, 2007 

(72 FR 19413). Omoad emissions for the May 30, 2006, submittal were calculated using 

MOBILE6.2. U.S. EPA has encouraged mobile source stakeholders to transition to the new Motor 

Vehicle Emissions Simulator (MOVES) model as expeditiously as possible. Therefore, IDEM is 

providing this MOBILE6.2 to MOVES replacement update to the previously submitted 8-hour 

ozone maintenance plan for the South Bend-Elkhart Area that incorporates MOVES-based omoad 

em1sswns. 

Emission Inventory 

The table, "2010 and 2020 Projected Emission Inventory", was included in Appendix C ofthe 

original Redesignation Petition and Maintenance Plan. This table also included the year 2004 (the 

middle year of the area's attainment design value). The table, "2010 and 2020 Projected Emission 

Inventory- A", (to be considered a replacement ofthe table included in Appendix C) has been 

revised to incorporate updated omoad emission estimates for nitrogen oxides (NOx) and volatile 

organic compounds (VOCs) for the years 2004, 2010, and 2020; it results in a different overall 

safety margin for the area. 

2010 and 2020 Projected Emission Inventory 

In Tons Per Summer Day, South Bend-Elkhart Area (MOBILE6.2-based Onroad 

Emissions) 

Sector· NOx2004 NOx2010 NOx 2020 

Area 7.13 7.54 7.98 

Nonroad 19.56 14.06 9.78 

Onroad W-z-1-l- ~ ~ 

Point 5.9 6.32 7.17 

Total &.-'7() 4+'.21 ~ 

Sector VOC2004 VOC2010 VOC2020 

Area 29.43 31.15 35.20 

Nonroad 13.40 10.47 8.06 

Onroad ~ ~ ~ 

Point 25.63 29.16 39.78 

Total 8&98 &2.J4 ~ 

1 
2010 and 2020 Projected Emission Inventory -A 

In Tons Per Summer Day, South Bend-Elkhart Area (MOVES-based Onroad Emissions) 

Sector NOx 2004 NOx 2010 NOx 2020 

Area 7.13 7.54 7.98 

Nonroad 19.56 14.06 9.78 

Onroad 58.89 32.12 12.13 

Point 5.90 6.32 7.17 

Total 91.48 60.04 37.06 

Overall Safety Margin - 3 1.44 54.42 

Sector VOC2004 voc 2010 voc 2020 

Area 29.43 31.15 35.20 

Nonroad 13.40 10.47 8.06 

Onroad 28.37 13.87 5.85 

Point 25.63 29.16 39.78 

Total 96.83 84.65 88.89 

Overall Safety Margin - 12.18 7.94 

Onroad emission estimates in the table, "2010 and 2020 Projected Emission Inventory- A", were 

calculated using U.S. EPA's MOVES model-produced emission factors and data extracted from 

the area's travel-demand model. The MOVES model implements a significantly different 

approach to emissions estimation than the previous model (MOBILE6.2). Preliminary use ofthe 

MOVES model indicates that emission estimates can be considerably different than similar 

calculations using MOBILE6.2, which was used to create the original Motor Vehicle Emission 

Budgets (MVEBs) for the South Bend-Elkhart Area. A general summary of the MOVES 

methodology used in this area can be found in Appendix A. In addition, MOVES input and 

output files are being provided electronically with this submittal. Growth and control strategy 

assumptions for non-mobile sources (i.e. area, nonroad, and point) from the original submittal for 

the years 2004, 2010, and 2020 were developed before the economic challenges ofthe last 

several years. Because of this, the factors included in the original submittal may project more 

growth than will actually occur in the future. As a result, the growth and control strategy 

assumptions for the non-mobile sources for the years 2004, 2010, and 2020 continue to be valid 

and do not affect the overall conclusions of the plan. 

Onroad safety margins have been included for onroad emission estimates to accommodate the 

wide array of assumptions that are factored into the calculation process. Since assumptions 

change over time, it is necessary to have an onroad safety margin that will accommodate the 

impact of refined assumptions in the process. The plan continues to meet all applicable Clean 

Air Act (CAA) requirements as the revised emission inventories clearly illustrate that total NOx 

and VOC emissions in the South Bend-Elkhart Area will continue to decline leading to local 

reductions between 2004 (base year) and 2020 (maintenance plan horizon). 

2 
Transportation Conformity Budgets 

Table 5.1 was included on Page 16 of the original Redesignation Petition and Maintenance Plan 

for the South Bend-Elkhart Area. Table 5.1- A (to be considered a replacement of Table 5.1) has 

been revised to incorporate U.S. EPA's MOVES model-produced emission factors and data 

extracted from the region's travel-demand model. 

Table 5.1 

Emission Estimations for On-Road Mobile Sources 

(MOBILE6.2-based Onroad Emissions) 

St. Joseph and Elkhart 2004 2010 2020 

VMT (miles/day) 11,653,900 12,408,975 13,282,621 

VOC (tons/day) 17.52 11.56 6.64 

NOx (tons/day) 30.11 19.29 7.73 

Table 5.1- A 

Emission Estimates for On-Road Mobile Sources 

(MOVES-based Onroad Emissions) 

St. Joseph and Elkhart 2004 2010 2020 Counties 

VOC (tons/day) 28.37 13 .87 5.85 

NOx (tons/day) 58.89 32.12 12.13 

Table 5.2 was included on Page 16 of the original Redesignation Petition and Maintenance Plan 

for the South Bend-Elkhart Area. Table 5.2- A (to be considered a replacement of Table 5.2) has 

been revised to incorporate MVEBs calculated using U.S. EPA's MOVES model-produced 

emission factors and data extracted from the region's travel-demand model as detailed in Table 5.1 

-A. 

Table 5.2 

Mobile Vehicle Emission Budgets 

(MOBILE6.2-based Onroad Emissions) 

St. Joseph and Elkhart 2020 

VOC (tons/day) 6.64 

NOx (tons/day) 7.73 

Table 5.2- A 

Motor Vehicle Emission Budgets 

(MOVES-based Onroad Emissions) 

St. Joseph and Elkhart 2020 Counties 

VOC (tons/day) 6.73 

NOx (tons/day) 13 .95 

3 
Through the interagency consultation process, it was determined that a maintenance plan horizon 

year budget of 2020, would be appropriate. The interagency consultation group approved omoad 

margins of safety of fifteen percent (15%) for both VOC and NOx omoad emission estimates for 

the year 2020. A summary of this interagency consultation discussion can be found in Appendix 

B. These revised emission inventories clearly illustrate that omoad VOC and NOx emissions in the 

South Bend-Elkhart Area will continue to decline leading to local reductions between 2004 (base 

year) and 2020 (maintenance plan horizon). 

Furthermore, when compared to the overall safety margin as defined in the Code of Federal 

Regulations (CFR) at 40 CFR 93.101, it is evident the omoad safety margin allocation is 

reasonable and appropriate. More specifically, even with the allocation of an omoad safety margin 

to mobile sources, emissions will continue to remain well below the overall safety margin for all 

sources in the South Bend-Elkhart Area as detailed in the table, "2010 and 2020 Projected 

Emission Inventory- A." MVEBs are constrained to ensure that the total emissions (i.e., all source 

categories) do not exceed the 2004 attainment year emissions of either VOC or NOx, thereby 

ensuring continued maintenance of the 1997 8-hour ozone standard. 

Conclusion 

This MOBILE6.2 to MOVES replacement update to the previously submitted 8-hour ozone 

maintenance plan for the South Bend-Elkhart Area incorporates omoad emission estimates and a 

revised MVEB using U.S. EPA's recently adopted MOVES model. MVEBs have been revised in 

anticipation of the mandatory use of the MOVES model in future transportation conformity 

determinations. The omoad emission estimates were calculated using the MOVES-based emission 

factors and data extracted from the area's travel-demand model. Omoad safety margins for VOCs 

and NOx, established through the interagency consultation process, are included in order to account 

for the wide array of assumptions that are factored into the calculation process. MVEBs are also 

constrained to ensure that total VOC and NOx emissions (i.e., all source categories) do not exceed 

attainment year (2004) emissions to ensure continued maintenance of the 1997 8-hour ozone 

standard. With the addition of MOVES-based omoad safety margins applied to mobile sources, 

the South Bend-Elkhart Area will continue to remain well below the overall safety margins for all 

sources into the future. As such, the 8-hour ozone maintenance plan for the South Bend-Elkhart 

Area continues to meet all applicable CAA requirements. 

4 
Appendix A 

South Bend-Elkhart 

MOVES Methodology 
This page left intentionally blank 
MICHIANA AREA COUNCIL OF GOVERNMENTS 

MOVES Documentation 

Inputs, Analysis, and Reporting 

The following document is intended to outline the parameters used to run the MOVES emissions model 

for the MACOG 8-Hour Ozone maintenance area and identify the various sources of information used. 

A-1 
Table of Contents 

General Parameter Inputs ....................................................................................................................... A- 3 

Description .......................................................................................................................................... A- 3 

Scale .................................................................................................................................................... A-4 

Time Spans ................................................................................................................. ......................... A- 4 

Geographic Bounds ............................................................................................... .............................. A- 4 

Vehicles/Equipment I On Road Vehicles ............................................................................................ A- 5 

Road Type ............................................................................................................................................ A- 5 

Pollutants I Processes ......................................................................................................................... A- 5 

Strategies I Alternative Vehicle Fuels & Technology .......................................................................... A- 5 

· Output I General Output .................................................................................................................... A- 5 

Output I Output Emissions Detail. .......... ....... ..................................................................................... A- 6 

County Data Manager Inputs .................................................................................................................. A- 7 

Source (Vehicle) Type Population- milage-accumulation-rates_039.xlsx ......................................... A- 7 

Vehicle Type VMT ................................................................................................................................ A- 7 

Average Speed Distribution- avg_spd_distrib_default.xls ....................................... ......................... A- 8 

Road Type Distribution- roadtype_default.xls .................................................................................. A- 8 

Age Distribution- age_distrib_039.xls ............................................................................................... A- 8 

Ramp Fractions .................................................................................................................................... A- 8 

Meteorology Data- meteorological_converter_mobile6_039.xls ..................................................... A- 8 

Fuel- fuel default 2004 039.xls ....................................................................................................... A- 8 - - -

1/M Program ........................................................................................................................................ A- 8 

IN DOT Air Quality Post-Processor ........................................................................................................... A- 9 

Interface Options ................................................................................................................................. A- 9 

Master Inputs ....................................................................................... ............................................. A- 11 

A-2 
General Parameter Inputs 

The general parameter inputs are the runspec parameters used to process emissions in MOVES. One 

runspec is generated for each county in the MACOG 8-Hour Ozone maintenance area and for each 

model year resulting in ten (10) to sixteen (16) run specifications for the model. Using a multiple runspec 

creator in MOVES2010, a batch file was created for running each runspec file (*.mrs) in succession 

without user intervention. 

When initially setting up a MOVES specification, it is best to proceed down the list oftabs. 

9 MOVES - 10 2519679693660408608 lJ(g]l8j 

file f_dit Pr.e Processing Action ~ost Processing I ools ~ettings !:!ell' 

Scale 

Time SpanS 

' Geograplllc Boumls .. 1±1 ! Yell~ 

! Roadl)pe 

' 'F ~ : .- - "~!' I: t ' 

1±1 Slnlqillll "' '> i ~ 

1±1 • OUipUI 

Description 

A simple, general description of the various model runs detailing the horizon year, run type (inventory 

vs. rate), and the county being modeled by that run specification. 

A-3 
Scale 

Domain I Scale 

A county scale was selected, and two model runs are made for each horizon year; one for Elkhart and 

one for St. Joseph County. This scale is intended for development of the State Implementation Plan (SIP) 

and the regional conformity analysis required for 8-hour ozone non-attainment and maintenance areas. 

Calculation Type 

The emission rate calculation type was chosen over the inventory calculation type in order to provide 

rates for CMAQ modeling and project level modeling when necessary. 

A naming convention was established for flagging the numerous emissions rates generated for each 

county and model year. Using the MOVESScenarioiD field in the MOVES model, the county abbreviation 

followed by the model year was used, for example, Elk_2004 or SJC_2035. 

Time Spans 

Time Aggregation Level 

Hour was selected following the parameters used by the Indianapolis MPO and agreed upon during an 

interagency consultation group {ICG) meeting. Statewide data is used to disaggregate the daily VMT 

from the MACOG travel demand model to hourly VMT as part ofthe post processing analysis. 

Year 

A model run is generated for each year of emissions analysis with one (1) year being modeled in each 

run specification. The 2004 and 2010 model years are included for SIP development purposes. The 2004 

model year represents the recorded pollutants in the air from the 2002-2004 time period used to 

designate the Elkhart and St. Joseph County area as a basic non-attainment area for the 8-hour ozone 

standard. The 2010 model year was used in the preparation of the SIP to meet the area's 2009 

attainment year. Future years are modeled in 5 year increments from 2015 to 2035. 

Months 

Only July is modeled in the emissions analysis, representing a typical summer day during the ozone 

season. July 1st was used for Mobile 6.2a modeling. 

Days 

Weekdays are selected following the lead of the Indianapolis MPO. 

Hours 

Emissions rates are generated for all hours of the day. 

Geographic Bounds 

Elkhart County, Indiana and St. Joseph County, Indiana are individually selected for the region being 

modeled. A domain input database was selected for each county and horizon year, using the 

MOVESScenarioiD (lowercase) with an input suffix (i.e. elk_2004_input) to name the database. 

A-4 
NOTE: The domain input database should be set after all other values in the run specification have been 

configured. The database is then generated under the Manage Input Data Set tab, the domain input 

database name under the Geographic Bounds tab is pointed to the database, and the County Data 

Manager under the Pre Processing menu is used to populate the database from the template files. 

Vehicles/Equipment I On Road Vehicles 

All valid gas and diesel combinations were included in the emissions modeling. Any non-existent 

combinations (i.e. diesel motorcycles) were removed to eliminate the MOVES warning messages from 

the interface. 

Road Type 

All road types were modeled. However, no off-road types are included in the travel demand model and 

are not a part of the resulting emissions. 

The MOVES Rural Restricted Access (2) road types include rural interstates and principal arterials as 

travel patterns of rural principal arterials should more closely resemble the travel patterns of a 

restricted access roadway. Urban Restricted Access (4) road types include interstates, freeways, and 

expressways, but not primary arterials. Rural Unrestricted Access (3) and Urban Unrestricted Access (5) 

road types include all other arterials, collectors, and local roads. 

Pollutants I Processes 

All processes were selected for total gaseous hydrocarbons, non-methane hydrocarbons, volatile 

organic compounds, carbon monoxide (CO), oxides of nitrogen (NOx), and total energy consumption. 

Only the emissions for volatile organic compounds (VOC) and oxides of nitrogen (NOx) are required in 

the final analysis and calculated by the INDOT Air Quality Post-Processor. Total energy consumption and 

CO emissions are for informational purposes. 

Strategies I Alternative Vehicle Fuels & Technology 

The MACOG region does not support any compressed natural gas (CNG) vehicles in the areas transit 

fleet. However, MOVES does consider a mix of CNG and gasoline engines in the transit mix, which can 

impact final emissions rates. To compensate, all bus source types were adjusted to 100% diesel engines 

in the database. 

Output I General Output 

Database Name 

All output is stored in the macog_output database, which is deleted from MySQL and recreated in 

MOVES before generating a new set of emissions rates. Each run is flagged by a county abbreviation and 

the model year (Eik_2004, SJC_2035, etc) in order to identify and keep the individual model runs within 

the database separate. 

Units 

The output units are in grams (mass units), joules (energy), and miles (distance) to prevent rounding 

errors from using larger units of measurement. Grams are later converted to short tons for reporting. 

A- 5 
Activity 

Only the grayed out defaults of distance traveled and population are selected. 

Output I Output Emissions Detail 

Source Use Type was selected in addition to the grayed out default selections. 

A-6 
County Data Manager Inputs 

I Datab<'lse: ._lel_k _ 2_0_04 ___ in_tn_rt _______ ...._ j ,.--'11 Create Database II Refresh 

I Clear Alllrnt>orled Data 

2011-1 1-23 09:52:1 7.0 Road Typ e Distribution Filled RoadTypeDistribution table 

2011-11-1 4 11 :18:57.0 Vehicle Type VMT Filled MonthVMTF raction table 

2011-11-1411 :18:57.0 Vehicle Type VMT Filled DayVMTFraction table 

2011-11-14 11 :1 8:57.0 Vehicle Type VMT Filled HourVMTFraction table 

2011-11-14 11 :18:56. 0 Vehi cle Type VMT Filled HPMSVTypeYear table 

2011-11-1 4 11:14:03.0 Source Type Population Filled SourceTypeYear table 

2011-11-14 11 :13:08.0 Fuel Filled FueiForrnulation table 

2011-11-1 4 11 :13:04.0 Fuel Filled FueiSupply table 

201 1-11-1 4 11 :10:14.0 Meteorology Data Filled ZoneMonthHourtable 

2011-11-1 4 11:09:03. 0 Average Speed Distribution Filled AvgSpeedDistribution table 

2011-11 -14 11 :08: 40.0 Age Di stribution Filled SourceTypeAgeDistribution tabl e 

Database 

Done 

Source (Vehicle) Type Population- milage-accumulation-rates_039.xlsx 

Provided by INDOT, the milage-accumulation-rates spreadsheet allowed for the input of vehicle 

population data based on State registration data as well as base year (2010) and horizon year (2030) 

model input data from MACOG. The model vehicle miles traveled (VMT) data was broken down by 

MOVES road type and vehicle growth rates were calculated from available population and employment 

numbers in the socioeconomic data. 

Vehicle Type VMT 

HPMSVTypeYear- milage-accumulation-rates_039.xlsx 

In addition to calculating the source type population, the milage-accumulation-rates spreadsheet 

provided by IN DOT also breaks down VMT by HPMS vehicle type. 

Month VMTFraction -IndianaMonthDayFractions.xlsx 

Indiana defaults provided by IN DOT were used to generate emissions rates. 

A-7 
DayVMTFraction - IndianaMonthDayFractions.xlsx 

Indiana defaults provided by IN DOT were used to generate emissions rates. 

HourVMTFraction - IndianaHourlyFractions.xls 

Indiana defaults provided by IN DOT were used to generate emissions rates. 

Average Speed Distribution- avg_spd_distrib_default.xls 

Not needed for emission rate mode (section 3.6.3 from MOVES Technical Guidance). Default data from 

MOVES used for model runs. 

Road Type Distribution - roadtype_default.xls 

Not needed for emission rate mode (section 3.7.1 from MOVES Technical Guidance). Default data from 

MOVES used for model runs. 

Age Distribution- age_distrib_039.xls 

The preliminary 2009 vehicle registration data by county from the BMV was provided by INDOT and 

replicated for each emissions year. 

Ramp Fractions 

Ramp fraction inputs are not applied when the Emission Rate option is selected and will not affect the 

rates on rural and urban restricted roads (section 3.8 from MOVES Technical Guidance). Default data 

from MOVES used for model runs. 

Meteorology Data- meteorological_converter_mobile6_039.xls 

Minimum and maximum temperatures along with absolute humidity were used to generate hourly 

meteorological data. The temperatures are consistent with those used in Mobile 6.2 model runs. Default 

absolute humidity values were used. 

Fuel- fuel_default_2004_039.xls 

Default fuel formulation was used for Elkhart and St. Joseph County based on guidance from the 

Indianapolis MPO. Defaults were generated for 2004, 2010, and 2012, with the 2012 fuel formulation 

being used for all future emissions years. 

1/M Program 

No inspection and maintenance program is currently required in Elkhart or St. Joseph County. 

A-8 
INDOT Air Quality Post-Processor 

Scenario ·Manager. Sairit Joseph 

Scenario Name l 

Emission pe --~ 

r Ozone An ~·sis Year: 

( " Particulate lvlatter '------_j Peak Spreading: 

r-----

Scenario File: 1 

Unk Table: I 

lntrazonal Table: r 

Output Directory I 

Scenario Description ' 

Calculate Emissions · Emissions T abies 

L~~I9~.~~~ ~-~.6 ~. 9.~~- ~J I 

Save _ I 

Save As... J 

....::J 

~ 

Emissions Report 

Air Quality 

Post-Processor 

Main Menu ..... I Oose 

Interface Options 

Emission Type 

MACOG is a maintenance area for the 8-hour ozone standard, but has no particulate matter issues. 

A - 9 
Analysis Year 

The analysis year drop down list is populated from a comma delimited file, yearlist.csv, with a column 

for each county and pollutant type. The list was recreated for St. Joseph (Sain_oz) and Elkhart's (Eikh_oz) 

ozone analysis years, which were not included in the default file from the State. 

Peak Spreading 

Peak spreading was enabled in the interface. This allows for the INDOT Air Quality Post-Processor to 

spread the assigned VMT during the peak hour before and after the peak when it exceeds the hourly 

capacity of the roadway. 

Scenario File 

·The naming convention for the scenario files included the 4-character county abbreviation, analysis year 

being calculated, and the pollutant type (i.e. Elkh_2004_0zone). 

Link Table 

The link tables are generated for both counties for each analysis year and consists of a subset of the 

street segment attributes joined with the trip assignments from the travel demand model. The link table 

consists of the following attributes: 

• Lin kiD- The unique segment identifier assigned by TransCAD. 

• Dir- Identifies the link as a two-way segment (0), one-way segment (1), or a one-way segment 

that travels the opposite direction (-1) that the link was drawn in (BA rather than AB). 

• Length- The TransCAD calculated length of the segment. 

• County- The county code the link is found in (20 or 71), which is then converted into a name. 

• HPMS_FC- The FHWA functional classification of the segment. 

• ROAD_TYPE- The road type is based on the functional class of the corridor. Rural Restricted 

Access (2) road types include rural interstates and principal arterials as travel patterns of rural 

principal arterials should more closely resemble the travel patterns of a restricted access 

roadway. Urban Restricted Access (4) road types include interstates, freeways, and expressways, 

but not primary arterials. Rural Unrestricted Access (3) and Urban Unrestricted Access (5) road 

types include all other arterials, collectors, and local roads. 

• AB_Aipha I BA_Aipha- The alpha values were based on the hard coded values used in the travel 

demand model. 

• AB_Beta I BA_Beta -The beta values were based on the hard coded values used in the travel 

demand model. 

• AB_FF _Time I BA_FF _Time-

• AB_CAP I BA_CAP- The hourly capacity of the link is 1110th of the daily capacity of the segment. 

• AB_ Veh_Fiow I BA_ Veh_Fiow- The daily flow of vehicles on the link in the given direction. 

Intrazonal Table 

The intrazonal tables are generated for both counties for each analysis year. The intrazonal table 

consists of the following attributes: 

A-10 
• TAZ_ID- The unique identifier of the traffic analysis zone. 

• County- The county where the traffic analysis zone is located . 

• Area_ Type- Whether the TAZ is in an urban or rural area of the county. 

• Distance - The average length of intrazonal trips in the TAZ. Calculated by determining the 

radius of a circle with an area equal to the area of the TAZ. 

• Dly_lntrazonai_Trips- The daily intrazonal trips generated by the TAZ but that do not leave the 

TAZ. Calculated by finding the diagonal values of the 0-D matrix generated by the travel demand 

model. 

Master Inputs 

Rate per Distance, Rate per Profile, Rate per Vehicle 

The emission rates for each county and analysis year are each queried out of the MOVES output 

database (macog_output) individually by emission rate and saved as a comma delimited file using the 4-

character county abbreviation, analysis year, emission type, and pollutant type to name the file in the 

Master Inputs folder (i.e. Elkh_2004_ratesperdistance_oz.csv). 

Source Type Population 

The source type population used as an input to the MOVES run specification is exported out of the 

template file as a comma delimited file using the 4-character county abbreviation, analysis year, and 

SourceTypePopulation (i.e. Elkh_2004_SourceTypePopulation.csv). 

Hourly VMT Fraction 

The hourly VMT fraction table was provided by INDOT and breaks down the fraction of VMT for each 

hour of the day by MOVES source type and road type. 

HPMS Fractions 

The HPMS fraction table was provided by IN DOT and breaks down the distribution of the HPMS vehicle 

types by the FHWA functional classification of the road segment. 

Vehicle Class Distribution 

The vehicle class distribution table was provided by INDOT and breaks down the distribution of HPMS 

vehicle types by MOVES road types. 

F: \ TransCAD \MOVES\ Documentation \MOVES2010Setup. doc 

A -11 

Appendix B 

South Bend-Elkhart Area 

Interagency Consultation Group 

Meeting Minutes/Summary 
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Interagency Consultation Group (ICG) Conference Call Minutes 

For the MOBILE6.2 to MOVES MVEB Replacement Update 

Related to the South Bend-Elkhart Maintenance Area under the 1997 8-Hour Ozone 

Standard 

ICG Conference Call Date and Time 

• May 10,2012 at 1pm Eastern 

ICG Attendees 

• Shawn Seals (IDEM), Patricia Morris (EPA), Steve Smith (INDOT), Larry Heil 

(FHW A), Vince Bernardin (BLA), Greg Katter (INDOT), Sandra Seanor 

(MACOG), John-Paul Hopman (MACOG), and Joyce Newland (FHWA) 

ICG Discussion Topics and Conclusions 

1. For the Ozone MVEB Replacement submittal, various mobile source margins of 

safety were discussed. 

A. After discussion, the consensus of the ICG was that as long as the a 15% 

mobile source margin of safety for VOC and NOx emissions does not result in 

an exceedance of the all sources margins of safety, it was reasonable and 

appropriate for inclusion in MVEB Replacement submittal. The attached 

spreadsheet demonstrates that a 15% mobile source margin of safety for VOC 

and NOx emissions fall well below the all sources margins of safety and, as 

such, will be reflected in the Ozone MVEB Replacement submittal. 

B-1